About new preset management system :
I guess that for the new reverbs, they have to write a lot of patches/presets.
I understand that if those patches must be somewhat redone when the new preset system is released, they prefer to wait and write them only once.
About lack of communication :
You wrote that Apple didn't communicate about future releases, you are right. But AFAIK, Apple doesn't have a public forum where management is writing routinely.
When you are accustomed to have discussions with people from a brand, it doesn't seem unrealistic to wait for informations from people from this brand. Remember last winter Namm when Kemper announced nothing (which they have all rights to do), on these forums there were a lot of expectations months before, the excitement growing, all of this for nothing. If this was happening on an unofficial Apple fans forum, i would say this is normal and Apple has nothing to do with it. When this is happening on an official forum with management taking part in the discussions, i think it's not so welcome.
I am glad they announced and demoed the reverbs at Summer Namm. I am glad they gave us the spring reverb preview which was a very good surprise. But when people were talking about an update "in a couple of weeks" and Kemper Gmbh perfectly knew that the ETA was to be counted in MONTHS if not SEMESTERS (i personally don't think this will be released in 2018), i think this was not the right thing to do, and i wonder if the word
manipulation could be used.